english



A M. ENGLISH. Device for Bending Wirefor Jewelry Manufacture.

No. 224,004. I Patented Feb. 3, 1880 QMMMMMMM lj-m I: 1

WITNESSES! .INVENTOR:

M M @Mq/rfl 54 4 44 NPEFERS, PHOTOJJTHOGRAFIQER, WASHINGTON. 0. C4

UNITED STATES A'rENr Fries.

ANALDO M. ENGLISH, OF PROVIDENCE, RHODE ISLAND.

DEVICE FOR BENDING WIRE FOR JEWELRY MANUFACTURE.

SPECIFICATION forming part of Letters Patent No. 224,004, dated February 3, 1880.

7 Application filed September 26, 1879.

To all whom it may concern:

Be it known that I, ANALDO Mrnrrn ENG- LIsH, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in the Art of Bending foods and Metals; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

The object of this invention is to bend metals or other material by compressing the material on the inner portion of the curve, and thus bending the same into the desired form.

The invention consists in forcing the material through a groove one end of which is curved in the same manner as the material is to be curved, as will be more fully set forth hereinafter.

Figure 1 is a perspective view of a device by means of which I bend the wires for screwstuds or ornamental shirt-buttons. Fig. 2 is M an interior view, showing the manner of conmeeting the hand-lever with the slide Fig. 3, a longitudinal sectional view of the device shown in Fig. 1. Fig. 4 is a perspective view of the slide and the fixed abutment against which the material rests. Fig. 5 is a view of the former or slide, showing the groove and the spiral at one end of the groove.

The device shown in the above drawings is specially designed for bending wires for jewelers use but similar devices may be used for bending other metals in sheets, strips, or bars. WVood also may be bent by machines of similar construction by forcing the same into grooves or ways curved or bent in the direction that it is desired to bend the material.

In the drawings, A is a metal frame, which is firmly secured to a bench or table. B is a slide connected by the link 0 to the crank d, which crank is connected with a shaft, to the upper end of which the leverE is secured. By moving the lever E motion is imparted to the slide B, and the same can be projected beyond the frame or drawn into the same. f is a groove in the slide B, the lower end of which is formed into a spiral. g is a stop or abutment firmly fixed on the frame A and entering the groove f.

If, now, a bar of metal or a wire is laid into the groove and the slide is drawn in, the metal will rest against the stop g, and will be forced into the spiral end of the groove. As the metal is pushed into the spiral andfits the groove loosely enough to prevent friction on the sides, and close enough to prevent lateral bending, the metal or wood (if wood is used that has been previously prepared for bending by steaming or otherwise) will be upset on the inside of the bend; and as every portion is in contact with the groove it is not liable to split or break, and when so formed will set more permanently than when bent around a foi'mer, in which case the springiness of the material will react and straighten more or less, whereas by my improved process the interior fiber in wood is pushed one cell within the other, and in case of metal the atoms are permanently displaced so as to assume the curved form.

It is obvious that the grooved slide may be made stationary, and the stop or abutment may be moved by any suitable means to push the material into the curved end of the groove.

It is also obvious that various other forms may be used, and the material forced into them compelled to assume the desired form.

11 is a screw, the end of which forms a stop by which the reciprocation of the slide B is limited, and the nut his used to clamp the screw 43 and prevent it from turning. It shows the end of a wire bent in the device, which device can be quickly operated by means of the lever E, and better spiral wire produced than in the older methods.

Having thus described myinvention, I claim as new and desire to secure by Letters Patent- 1. The combination, with the slide B, provided with a groove a portion of which is bent, of the abutment or stop g and means by which the material is forced through the groove and into the bent end, substantially as described. i

2. The combination, with the slide B, provided with the groove f, of the stop g and the lever E, arranged to operate substantially as and for the purpose set forth.

ANALDO M. ENGLISH. Witnesses:

JOSEPH A. MILLER, JosEPH A. MILLER, Jr. 

